Question

Решите уравнение: (3.6-2.5х)*1 5/7-5/7=1.6

Answer 1

$(3,6-2,5x)*1 frac{5}{7} - frac{5}{7} =1,6 \ ( frac{36}{10} - frac{25}{10}x)* frac{12}{7} - frac{5}{7} = frac{16}{10} \ frac{216}{35} - frac{30}{7} x- frac{5}{7} = frac{8}{5} \ - frac{30}{7} x= frac{8}{5} - frac{216}{35} + frac{5}{7} \ - frac{30}{7} x= - frac{27}{7} \ x=- frac{27}{7} *(- frac{7}{30} ) \ x= frac{9}{10} =0,9$